[1]HAN Wenyan,CHEN Xingpeng,ZHANG Zilong,et al.Analysis on Spatiotemporal Structure of Water Resources Utilization Efficiency of the Prefecture Level Cities and Beyond in China[J].Research of Soil and Water Conservation,2018,25(02):354-360.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 02
Page number:
354-360
Column:
Public date:
2018-04-03
- Title:
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Analysis on Spatiotemporal Structure of Water Resources Utilization Efficiency of the Prefecture Level Cities and Beyond in China
- Author(s):
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HAN Wenyan1,3, CHEN Xingpeng1,2,3, ZHANG Zilong1,2,3, WANG Ningfei1,3, YU Yuanhao1
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1. College of Earth Environmental Science, Lanzhou University, Lanzhou 730000, China;
2. Key Laboratory of Western China’s Environmental Systems(Ministry of Education) Lanzhou University, Lanzhou 730000, China;
3. Research Institute for Circular Economy in Western China, Lanzhou University, Lanzhou 730000, China
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- Keywords:
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water use efficiency; cities; data envelopment analysis
- CLC:
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TV213.9
- DOI:
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- Abstract:
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With the rapid development of economy and society, the problem on the shortage of water is increasingly becoming serious. Therefore, it has great significance for sustainable development of human society to improve the efficiency and reasonable use of water resources. Based on the data envelopment analysis, we evaluated the use efficiency of water resources of the prefecture level cities and beyond in China and analyzed spatiotemporal structure. The results show that most of China’s urban water resources utilization are at an ineffective state, on the whole, the efficiency is lower than other countries, but it has a trend to improve slowly, and east and provincial capitals have a bigger increment; in terms of water resources utilization in three zones, comprehensive efficiency decreases in the order:the east > west > central section, the technical efficiency decreases in the order:west > east > central section, scale efficiency decrease in the order:east > central section and central section > west; in the view of water resources utilization in executive cities, comprehensive efficiency and technical efficiency decrease in the sequence:municipality directly under the central government > prefecture level city > provincial capital, the scale efficiency deceases in the order:provincial capital > prefecture level city > municipality directly under the central government. The reason why the cities of China have low water efficiency is the low technical efficiency, but there is difference in spacial structure. Techniques in central parts and provincial capital are useless while the west and prefecture level cities are because of scale efficiency. In most parts of China, the water use efficiencies are on the rise. And the system of water use efficiency is still under the control of extensive development. Therefore, according to region difference, the government should make policies. The problem on water resources utilization remains to be resolved.